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https://issues.apache.org/jira/browse/FLINK-24336?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17417099#comment-17417099
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Xin Yu commented on FLINK-24336:
--------------------------------
i will submit a PR ASAP.
> PyFlink TableEnvironment executes the SQL randomly MalformedURLException with
> the configuration for 'pipeline.classpaths'
> -------------------------------------------------------------------------------------------------------------------------
>
> Key: FLINK-24336
> URL: https://issues.apache.org/jira/browse/FLINK-24336
> Project: Flink
> Issue Type: Bug
> Components: API / Python
> Affects Versions: 1.14.0, 1.13.2, 1.14.1
> Reporter: Nicholas Jiang
> Priority: Major
>
> When I run flink client to submit a python based workflow, I got the
> MalformedURLException like this:
> https://gist.github.com/is/faabafc7f8750f3f3161fbb6517ed6ff
> After some debug work, I found the problem is related with
> TableEvneriontment.execute_sql. The root cause is
> TableEvenriontment._add_jars_to_j_env_config in
> pyflink/table/TableEnverionment.py.
> ```
> if j_configuration.containsKey(config_key):
> for url in j_configuration.getString(config_key, "").split(";"):
> jar_urls_set.add(url)
> ```
> In our case, pipeline.classpaths was set by empty list value
> from FromProgramOption, so the upper code block will
> introduce a empty string ("") into pipeline.classpaths, for example
> "a.jar;b.jar;;c.jar", and it will cause the according exception.
> Another problem, the order of string set in python is not
> determinate, so ";".join(jar_urls_set) does NOT keep the
> classpaths order. The list is more suiteable in this case.
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